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PageAttributes (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

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JavaTM 2 Platform
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java.awt
Class PageAttributes

java.lang.Object
  |
  +--java.awt.PageAttributes
All Implemented Interfaces:
Cloneable
public final class PageAttributes
extends Object
implements Cloneable

A set of attributes which control the output of a printed page.

Instances of this class control the color state, paper size (media type), orientation, logical origin, print quality, and resolution of every page which uses the instance. Attribute names are compliant with the Internet Printing Protocol (IPP) 1.1 where possible. Attribute values are partially compliant where possible.

To use a method which takes an inner class type, pass a reference to one of the constant fields of the inner class. Client code cannot create new instances of the inner class types because none of those classes has a public constructor. For example, to set the color state to monochrome, use the following code: 

 import java.awt.PageAttributes;

 public class MonochromeExample {
     public void setMonochrome(PageAttributes pageAttributes) {
         pageAttributes.setColor(PageAttributes.ColorType.MONOCHROME);
     }
 }

Every IPP attribute which supports an attributeName-default value has a corresponding setattributeNameToDefault method. Default value fields are not provided.

Nested Class Summary
static class PageAttributes.ColorType
          A type-safe enumeration of possible color states.
static class PageAttributes.MediaType
          A type-safe enumeration of possible paper sizes.
static class PageAttributes.OrientationRequestedType
          A type-safe enumeration of possible orientations.
static class PageAttributes.OriginType
          A type-safe enumeration of possible origins.
static class PageAttributes.PrintQualityType
          A type-safe enumeration of possible print qualities.
 
Constructor Summary
PageAttributes()
          Constructs a PageAttributes instance with default values for every attribute.
PageAttributes(PageAttributes.ColorType color, PageAttributes.MediaType media, PageAttributes.OrientationRequestedType orientationRequested, PageAttributes.OriginType origin, PageAttributes.PrintQualityType printQuality, int[] printerResolution)
          Constructs a PageAttributes instance with the specified values for every attribute.
PageAttributes(PageAttributes obj)
          Constructs a PageAttributes instance which is a copy of the supplied PageAttributes.
 
Method Summary
 Object clone()
          Creates and returns a copy of this PageAttributes.
 boolean equals(Object obj)
          Determines whether two PageAttributes are equal to each other.
 PageAttributes.ColorType getColor()
          Returns whether pages using these attributes will be rendered in color or monochrome.
 PageAttributes.MediaType getMedia()
          Returns the paper size for pages using these attributes.
 PageAttributes.OrientationRequestedType getOrientationRequested()
          Returns the print orientation for pages using these attributes.
 PageAttributes.OriginType getOrigin()
          Returns whether drawing at (0, 0) to pages using these attributes draws at the upper-left corner of the physical page, or at the upper-left corner of the printable area.
 int[] getPrinterResolution()
          Returns the print resolution for pages using these attributes.
 PageAttributes.PrintQualityType getPrintQuality()
          Returns the print quality for pages using these attributes.
 int hashCode()
          Returns a hash code value for this PageAttributes.
 void set(PageAttributes obj)
          Sets all of the attributes of this PageAttributes to the same values as the attributes of obj.
 void setColor(PageAttributes.ColorType color)
          Specifies whether pages using these attributes will be rendered in color or monochrome.
 void setMedia(PageAttributes.MediaType media)
          Specifies the desired paper size for pages using these attributes.
 void setMediaToDefault()
          Sets the paper size for pages using these attributes to the default size for the default locale.
 void setOrientationRequested(int orientationRequested)
          Specifies the print orientation for pages using these attributes.
 void setOrientationRequested(PageAttributes.OrientationRequestedType orientationRequested)
          Specifies the print orientation for pages using these attributes.
 void setOrientationRequestedToDefault()
          Sets the print orientation for pages using these attributes to the default.
 void setOrigin(PageAttributes.OriginType origin)
          Specifies whether drawing at (0, 0) to pages using these attributes draws at the upper-left corner of the physical page, or at the upper-left corner of the printable area.
 void setPrinterResolution(int printerResolution)
          Specifies the desired cross feed and feed print resolutions in dots per inch for pages using these attributes.
 void setPrinterResolution(int[] printerResolution)
          Specifies the desired print resolution for pages using these attributes.
 void setPrinterResolutionToDefault()
          Sets the printer resolution for pages using these attributes to the default.
 void setPrintQuality(int printQuality)
          Specifies the print quality for pages using these attributes.
 void setPrintQuality(PageAttributes.PrintQualityType printQuality)
          Specifies the print quality for pages using these attributes.
 void setPrintQualityToDefault()
          Sets the print quality for pages using these attributes to the default.
 String toString()
          Returns a string representation of this PageAttributes.
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

PageAttributes

public PageAttributes()
Constructs a PageAttributes instance with default values for every attribute.

PageAttributes

public PageAttributes(PageAttributes obj)
Constructs a PageAttributes instance which is a copy of the supplied PageAttributes.

Parameters:
obj - the PageAttributes to copy.

PageAttributes

public PageAttributes(PageAttributes.ColorType color,
                      PageAttributes.MediaType media,
                      PageAttributes.OrientationRequestedType orientationRequested,
                      PageAttributes.OriginType origin,
                      PageAttributes.PrintQualityType printQuality,
                      int[] printerResolution)
Constructs a PageAttributes instance with the specified values for every attribute.

Parameters:
color - ColorType.COLOR or ColorType.MONOCHROME.
media - one of the constant fields of the MediaType class.
orientationRequested - OrientationRequestedType.PORTRAIT or OrientationRequestedType.LANDSCAPE.
origin - OriginType.PHYSICAL or OriginType.PRINTABLE
printQuality - PrintQualityType.DRAFT, PrintQualityType.NORMAL, or PrintQualityType.HIGH
printerResolution - an integer array of 3 elements. The first element must be greater than 0. The second element must be must be greater than 0. The third element must be either 3 or 4.
Throws:
IllegalArgumentException - if one or more of the above conditions is violated.
Method Detail

clone

public Object clone()
Creates and returns a copy of this PageAttributes.

Overrides:
clone in class Object
Returns:
the newly created copy. It is safe to cast this Object into a PageAttributes.
See Also:
Cloneable

set

public void set(PageAttributes obj)
Sets all of the attributes of this PageAttributes to the same values as the attributes of obj.

Parameters:
obj - the PageAttributes to copy.

getColor

public PageAttributes.ColorType getColor()
Returns whether pages using these attributes will be rendered in color or monochrome. This attribute is updated to the value chosen by the user.

Returns:
ColorType.COLOR or ColorType.MONOCHROME.

setColor

public void setColor(PageAttributes.ColorType color)
Specifies whether pages using these attributes will be rendered in color or monochrome. Not specifying this attribute is equivalent to specifying ColorType.MONOCHROME.

Parameters:
color - ColorType.COLOR or ColorType.MONOCHROME.
Throws:
IllegalArgumentException - if color is null.

getMedia

public PageAttributes.MediaType getMedia()
Returns the paper size for pages using these attributes. This attribute is updated to the value chosen by the user.

Returns:
one of the constant fields of the MediaType class.

setMedia

public void setMedia(PageAttributes.MediaType media)
Specifies the desired paper size for pages using these attributes. The actual paper size will be determined by the limitations of the target printer. If an exact match cannot be found, an implementation will choose the closest possible match. Not specifying this attribute is equivalent to specifying the default size for the default locale. The default size for locales in the United States and Canada is MediaType.NA_LETTER. The default size for all other locales is MediaType.ISO_A4.

Parameters:
media - one of the constant fields of the MediaType class.
Throws:
IllegalArgumentException - if media is null.

setMediaToDefault

public void setMediaToDefault()
Sets the paper size for pages using these attributes to the default size for the default locale. The default size for locales in the United States and Canada is MediaType.NA_LETTER. The default size for all other locales is MediaType.ISO_A4.

getOrientationRequested

public PageAttributes.OrientationRequestedType getOrientationRequested()
Returns the print orientation for pages using these attributes. This attribute is updated to the value chosen by the user.

Returns:
OrientationRequestedType.PORTRAIT or OrientationRequestedType.LANDSCAPE.

setOrientationRequested

public void setOrientationRequested(PageAttributes.OrientationRequestedType orientationRequested)
Specifies the print orientation for pages using these attributes. Not specifying the property is equivalent to specifying OrientationRequestedType.PORTRAIT.

Parameters:
orientationRequested - OrientationRequestedType.PORTRAIT or OrientationRequestedType.LANDSCAPE.
Throws:
IllegalArgumentException - if orientationRequested is null.

setOrientationRequested

public void setOrientationRequested(int orientationRequested)
Specifies the print orientation for pages using these attributes. Specifying 3 denotes portrait. Specifying 4 denotes landscape. Specifying any other value will generate an IllegalArgumentException. Not specifying the property is equivalent to calling setOrientationRequested(OrientationRequestedType.PORTRAIT).

Parameters:
orientationRequested - 3 or 4
Throws:
IllegalArgumentException - if orientationRequested is not 3 or 4

setOrientationRequestedToDefault

public void setOrientationRequestedToDefault()
Sets the print orientation for pages using these attributes to the default. The default orientation is portrait.

getOrigin

public PageAttributes.OriginType getOrigin()
Returns whether drawing at (0, 0) to pages using these attributes draws at the upper-left corner of the physical page, or at the upper-left corner of the printable area. (Note that these locations could be equivalent.) This attribute cannot be modified by, and is not subject to any limitations of, the implementation or the target printer.

Returns:
OriginType.PHYSICAL or OriginType.PRINTABLE

setOrigin

public void setOrigin(PageAttributes.OriginType origin)
Specifies whether drawing at (0, 0) to pages using these attributes draws at the upper-left corner of the physical page, or at the upper-left corner of the printable area. (Note that these locations could be equivalent.) Not specifying the property is equivalent to specifying OriginType.PHYSICAL.

Parameters:
origin - OriginType.PHYSICAL or OriginType.PRINTABLE
Throws:
IllegalArgumentException - if origin is null.

getPrintQuality

public PageAttributes.PrintQualityType getPrintQuality()
Returns the print quality for pages using these attributes. This attribute is updated to the value chosen by the user.

Returns:
PrintQualityType.DRAFT, PrintQualityType.NORMAL, or PrintQualityType.HIGH

setPrintQuality

public void setPrintQuality(PageAttributes.PrintQualityType printQuality)
Specifies the print quality for pages using these attributes. Not specifying the property is equivalent to specifying PrintQualityType.NORMAL.

Parameters:
printQuality - PrintQualityType.DRAFT, PrintQualityType.NORMAL, or PrintQualityType.HIGH
Throws:
IllegalArgumentException - if printQuality is null.

setPrintQuality

public void setPrintQuality(int printQuality)
Specifies the print quality for pages using these attributes. Specifying 3 denotes draft. Specifying 4 denotes normal. Specifying 5 denotes high. Specifying any other value will generate an IllegalArgumentException. Not specifying the property is equivalent to calling setPrintQuality(PrintQualityType.NORMAL).

Parameters:
printQuality - 3, 4, or 5
Throws:
IllegalArgumentException - if printQuality is not 3 , 4, or 5

setPrintQualityToDefault

public void setPrintQualityToDefault()
Sets the print quality for pages using these attributes to the default. The default print quality is normal.

getPrinterResolution

public int[] getPrinterResolution()
Returns the print resolution for pages using these attributes. Index 0 of the array specifies the cross feed direction resolution (typically the horizontal resolution). Index 1 of the array specifies the feed direction resolution (typically the vertical resolution). Index 2 of the array specifies whether the resolutions are in dots per inch or dots per centimeter. 3 denotes dots per inch. 4 denotes dots per centimeter.

Returns:
an integer array of 3 elements. The first element must be greater than 0. The second element must be must be greater than 0. The third element must be either 3 or 4.

setPrinterResolution

public void setPrinterResolution(int[] printerResolution)
Specifies the desired print resolution for pages using these attributes. The actual resolution will be determined by the limitations of the implementation and the target printer. Index 0 of the array specifies the cross feed direction resolution (typically the horizontal resolution). Index 1 of the array specifies the feed direction resolution (typically the vertical resolution). Index 2 of the array specifies whether the resolutions are in dots per inch or dots per centimeter. 3 denotes dots per inch. 4 denotes dots per centimeter. Note that the 1.1 printing implementation (Toolkit.getPrintJob) requires that the feed and cross feed resolutions be the same. Not specifying the property is equivalent to calling setPrinterResolution(72).

Parameters:
printerResolution - an integer array of 3 elements. The first element must be greater than 0. The second element must be must be greater than 0. The third element must be either 3 or 4.
Throws:
IllegalArgumentException - if one or more of the above conditions is violated.

setPrinterResolution

public void setPrinterResolution(int printerResolution)
Specifies the desired cross feed and feed print resolutions in dots per inch for pages using these attributes. The same value is used for both resolutions. The actual resolutions will be determined by the limitations of the implementation and the target printer. Not specifying the property is equivalent to specifying 72.

Parameters:
printerResolution - an integer greater than 0.
Throws:
IllegalArgumentException - if printerResolution is less than or equal to 0.

setPrinterResolutionToDefault

public void setPrinterResolutionToDefault()
Sets the printer resolution for pages using these attributes to the default. The default is 72 dpi for both the feed and cross feed resolutions.

equals

public boolean equals(Object obj)
Determines whether two PageAttributes are equal to each other.

Two PageAttributes are equal if and only if each of their attributes are equal. Attributes of enumeration type are equal if and only if the fields refer to the same unique enumeration object. This means that an aliased media is equal to its underlying unique media. Printer resolutions are equal if and only if the feed resolution, cross feed resolution, and units are equal.

Overrides:
equals in class Object
Parameters:
obj - the object whose equality will be checked.
Returns:
whether obj is equal to this PageAttribute according to the above criteria.
See Also:
Object.hashCode(), Hashtable

hashCode

public int hashCode()
Returns a hash code value for this PageAttributes.

Overrides:
hashCode in class Object
Returns:
the hash code.
See Also:
Object.equals(java.lang.Object), Hashtable

toString

public String toString()
Returns a string representation of this PageAttributes.

Overrides:
toString in class Object
Returns:
the string representation.
Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Std. Ed. v1.4.1
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SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD
Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.